MIC5281YMME-TR

MIC5281 120VIN, 25mA, Ultra-Low IQ, High-PSRR Linear Regulator General Description The MIC5281 high-performance linear regulator offers a very-wide input operating voltage range, up to 120V DC, and supplies an output current of up to 25mA. Ideal for high input voltage applications such as industrial and telecom, the MIC5281 offers ±3% initial accuracy, extremely high-power supply rejection ratio (>90db) and ultra-low quiescent current of 6µA. The MIC5281 is optimized for high-voltage line transients, making it ideal for harsh environment applications. The MIC5281 is offered in both fixed output voltage (3.3V/5.0V) and adjustable output voltage (1.27V to 5.5V) options. The MIC5281 operates over a −40ºC to +125ºC temperature range and is available in lead-free, RoHScompliant, 8-pin ePad MSOP, and 8-pin MSOP packages Datasheets and support documentation are available on Micrel’s web site at: www.micrel.com. Features • • • • • • • • • Wide input voltage range: 6V to 120V DC Ultra-low quiescent current: 6µA 25mA guaranteed output current Adjustable output from 1.27V to 5.5V Withstands up to +120V DC at the input Stable with ceramic capacitors Ultra-high PSRR >90dB Ultra-high line rejection (load dump) High output accuracy: − ±3% initial accuracy • Thermal-shutdown and current-limit protection: − Thermally-efficient, 8-pin MSOP, and 8-pin ePad MSOP packages Applications • • • • Industrial applications Remote keyless entry power supply Telecom applications Off-line power supplies Typical Application Quiescent Supply Current vs. Input Voltage 11.0 QUIESCENT CURRENT (µA) 10.0 VOUT = 5V IOUT = 0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 20 40 60 80 100 120 INPUT VOLTAGE (V) Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com October 2, 2014 Revision 3.0 Micrel, Inc. MIC5281 Ordering Information Part Number Output Voltage Top Mark Temperature Range Package Lead Finish Adjustable 781A –40°C to +125°C 8-Pin ePad MSOP Pb-Free MIC5281-3.3YMME 3.3V 781S –40°C to +125°C 8-Pin ePad MSOP Pb-Free MIC5281-5.0YMME 5.0V 7815 –40°C to +125°C 8-Pin ePad MSOP Pb-Free Adjustable 5281 YMM –40°C to +125°C 8-Pin MSOP Pb-Free MIC5281-3.3YMM 3.3V 5281 3.3Y –40°C to +125°C 8-Pin MSOP Pb-Free MIC5281-5.0YMM 5.0V 5281 5.0Y –40°C to +125°C 8-Pin MSOP Pb-Free MIC5281YMME MIC5281YMM Pin Configuration October 2, 2014 8-Pin ePAD MSOP MIC5281-x.xYMME 8-Pin MSOP MIC5281-x.xYMM (TOP VIEW) (TOP VIEW) 8-Pin ePAD MSOP MIC5281YMME 8-Pin MSOP MIC5281YMM (TOP VIEW) (TOP VIEW) 2 Revision 3.0 Micrel, Inc. MIC5281 Pin Description Pin Name Function MIC5281YMME MIC5281-x.xYMME MIC5281YMM MIC5281-x.xYMM 1 1 1 1 VIN Supply Voltage Input. Connect 1µF capacitor from VIN to GND. 2, 3, 7 2, 3, 7 2, 3, 7 2, 3, 7 NC Not internally connected. Connect NC to GND or leave unconnected. 4 4 4 4 CPSRR 5 5 5 5 GND 6 − 6 − FB − 6 − 6 SNS 8 8 8 8 VOUT Regulator Output. Connect 10µF capacitor from VOUT to GND. EP EP − − EP Exposed Pad (ePad) for Thermal Relief. Connect EP to GND. October 2, 2014 3 Bypass Capacitor Connection. Connect 0.1µF capacitor from CPSRR to GND. Ground. Feedback Connection. For external resistor divider to set VOUT. Sense input. Connect SNS to VOUT. Revision 3.0 Micrel, Inc. MIC5281 Absolute Maximum Ratings(1) Operating Ratings(2) VIN to GND................................................... –0.3V to +125V VCPSRR to GND ..................................................–0.3 to +14V VFB, VSNS, VOUT to GND ................................... –0.3V to +6V Lead Temperature (soldering, 10s) .......................... +260°C Junction Temperature ......................... –40°C ≤ TJ ≤ +125°C Storage Temperature .........................–65°C ≤ TA ≤ +150°C ESD Ratings(4) HBM ......................................................................... 2kV MM ......................................................................... 200V VIN ................................................................. +6V to +120V VOUT Adjust Range ..................................... +1.27V to +5.5V Junction Temperature ......................... –40°C ≤ TJ ≤ +125°C Power Dissipation (PD) ........................... Internally Limited(3) Junction Thermal Resistance (θJA) 8-pin ePad MSOP .............................................. 64°C/W 8-pin MSOP ..................................................... 160°C/W Electrical Characteristics(5) VIN = 12V, CIN = 1.0µF, CPSRR = 0.1µF, COUT = 10µF, VOUT = 5.0V or 3.3V, IOUT = 100µA, TA = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted. Parameter Condition Min. Typ. Max. Units 120 V 11 µA Power Supply Input Input Voltage Range(6) Quiescent Supply Current 6 IOUT = 0 6 Output Voltage Adjustable 1.27 Fixed 3.3V Output Voltage Fixed 5.0V 3.2 3.3 3.4 3.13 3.3 3.47 4.85 5.0 5.15 4.75 5.0 5.25 +3 % −5 +5 % 0.2 +1.0 % −0.5 0.04 +0.5 % 1.232 1.270 1.308 1.206 1.270 1.333 Variation from nominal VOUT Load Regulation IOUT = 100µA to 25mA −1.0 VIN = 10V to 120V Line Regulation V −3 Output Voltage Accuracy (7) 5.5 Feedback Input (Adjustable) FB Voltage FB Current VFB = 1.27V 3.2 V nA Current Limit Current Limit 30 VOUT = 0V 65 130 mA Ripple Rejection Power Supply Rejection Ratio f = 20kHz to 2MHz 90 dB Notes: 1. Exceeding an absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. The maximum allowable power dissipation at any TA (ambient temperature) is PD(max) = (TJ(max) – TA) / θJA. Exceeding the maximum allowable power dissipation results in excessive die temperature, and causes the regulator to enter thermal shutdown. 4. Devices are ESD sensitive; use proper handling precautions. Human body model, 1.5kΩ in series with 100pF. 5. Specifications are for packaged products only. 6. Assure that VIN ≥ (VOUT + 3V) and VIN ≥ 6V. 7. Line regulation is a percentage of VOUT. October 2, 2014 4 Revision 3.0 Micrel, Inc. MIC5281 Electrical Characteristics(5) (Continued) VIN = 12V, CIN = 1.0µF, CPSRR = 0.1µF, COUT = 10µF, VOUT = 5.0V or 3.3V, IOUT = 100µA, TA = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted. Parameter Condition Min. Typ. Max. Units 2 3 V Power Dropout Voltage Dropout Voltage IOUT = 25mA Thermal Protection Thermal-Shutdown Temperature TJ rising Thermal-Shutdown Hysteresis October 2, 2014 5 157 °C 15 °C Revision 3.0 Micrel, Inc. MIC5281 Typical Characteristics IOUT = 0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 9.0 VIN = 12V IOUT = 0mA 8.0 7.0 6.0 5.0 4.0 3.0 2.0 VOUT = 5V 5.10 IOUT = 5mA 5.05 5.00 4.95 4.90 4.85 0.0 0 20 40 60 80 100 120 -50 -25 0 25 50 75 100 0 125 OUTPUT VOLTAGE (V) VOUT = 5V 5.15 5.10 5.05 5.00 4.95 4.90 VOUT = 5V 5.15 IOUT = 5mA 5.10 5.05 5.00 4.95 4.90 4.85 4.85 4.80 4.80 5 10 15 20 -50 25 -25 OUTPUT CURRENT (mA) 0 25 50 75 100 1.50 1.00 0.50 0 125 5 2.0 1.9 1.8 1.7 20 25 FB Current vs. Input Voltage VOUT = 5V 4.5 VOUT = 5V IOUT = 5mA 4.0 VFB = 1.267V FB CURRENT (nA) FB VOLTAGE (V) 2.1 15 5.0 1.30 VOUT = 5V IOUT = 25mA 10 OUTPUT CURRENT (mA) 1.31 2.2 2.00 FB Voltage vs. Input Voltage Dropout Voltage vs. Temperature 2.3 120 VOUT = 5V ADJUSTABLE OPTION 2.50 TEMPERATURE (°C) 2.4 100 0.00 4.75 4.75 80 3.00 VIN = 12V 5.20 DROPOUT VOLTAGE (V) VIN = 12V 60 Dropout Voltage vs. Output Current 5.25 5.25 0 40 INPUT VOLTAGE (V) Output Voltage vs. Temperature Output Voltage vs. Output Current 5.20 20 TEMPERATURE (°C) INPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 5.15 VOUT = 5V 1.0 0.0 DROPOUT VOLTAGE (V) Output Voltage vs. Input Voltage VIN = 12V 10.0 VOUT = 5V QUIESCENT CURRENT (µA) QUIESCENT CURRENT (µA) 10.0 Quiescent Supply Current vs. Temperature 11.0 OUTPUT VOLTAGE (V) Quiescent Supply Current vs. Input Voltage 11.0 1.29 1.28 1.27 1.26 3.5 3.0 2.5 2.0 1.5 1.25 1.0 1.6 1.24 1.5 0.5 1.23 1.4 -50 -25 0 25 50 75 TEMPERATURE (°C) October 2, 2014 100 125 0.0 0 20 40 60 80 INPUT VOLTAGE (V) 6 100 120 0 20 40 60 80 100 120 INPUT VOLTAGE (V) Revision 3.0 Micrel, Inc. MIC5281 Typical Characteristics (Continued) 2.5 1.31 1.276 VIN = 12V FB CURRENT (nA) IOUT = 5mA 1.29 VIN = 12V VIN = 12V 2.0 VOUT = 5V 1.28 1.27 1.26 VOUT = 5.0V 1.274 VFB = 1.267V FB VOLTAGE (V) 1.30 FB VOLTAGE (V) FB Voltage vs. Output Current FB Current vs. Temperature FB Voltage vs. Temperature IOUT = 0 1.5 1.0 1.272 1.270 1.268 0.5 1.25 1.266 0.0 1.24 -50 -25 0 25 50 75 100 125 -50 -25 0 75 100 0 125 VOUT = 0V 70 65 60 55 0.35 VOUT = 5V IOUT = 100µA 0.30 0.25 0.20 0.15 0.10 0.05 -50 -25 0 25 50 75 100 -25 0 25 50 75 100 TEMPERATURE (°C) TEMPERATURE (°C) Power Dissipation vs. Output Current Case Temperature (MME) vs. Output Current 0.20 125 0.16 VOUT = 4.5V 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0.00 5 10 15 20 OUTPUT CURRENT (mA) October 2, 2014 25 VOUT = 5V IOUT =100µA to 25mA 0.24 0.22 0.20 0.18 0.16 0.14 -25 0 25 50 75 100 125 PSRR vs. Frequency 30 VIN = 12V VIN = 12V 38 10 VOUT = 4.5V 36 -10 34 -30 32 30 -90 10 15 20 OUTPUT CURRENT (mA) 7 25 CIN = None CPSRR = 0.1µF -70 -110 5 IOUT = 5mA COUT = 10µF 26 0 VOUT = 5V -50 28 24 0 VIN = 12V 0.26 TEMPERATURE (°C) PSRR (dB) CASE TEMPERATURE (°C) VIN = 12V 0.28 -50 40 0.18 25 0.10 -50 125 20 0.12 0.00 50 15 0.30 VIN = 10V to 120V LOAD REGULATION (%) LINE REGULATION (%/V) VIN = 12V 10 Load Regulation vs. Temperature 0.40 80 75 5 OUTPUT CURRENT (mA) Line Regulation vs. Temperature Current Limit vs. Temperature CURRENT LIMIT (mA) 50 TEMPERATURE (°C) TEMPERATURE (°C) POWER DISSIPATION (W) 25 -130 0.01 0.1 1 10 100 1000 10000 FREQUENCY (kHz) Revision 3.0 Micrel, Inc. MIC5281 Functional Characteristics October 2, 2014 8 Revision 3.0 Micrel, Inc. MIC5281 Functional Characteristics (Continued) October 2, 2014 9 Revision 3.0 Micrel, Inc. MIC5281 Functional Diagram MIC5281 Adjustable Version MIC5281 Fixed Version October 2, 2014 10 Revision 3.0 Micrel, Inc. MIC5281 Functional Description Output Voltage Setting For the MIC5281YMME and MIC5281YMM, VOUT is programmed from 1.27V to 5.5V using Equation 1: The MIC5281 voltage regulator accepts a 6V to 120V input and has an ultra-low 6µA typical quiescent current while offering an excellent line transient response and PSRR. These features make it ideal for harsh, noisy environments. All options of the device offer 25mA of output current. The MIC5281YMM and MIC5281YMME offer an adjustable output voltage from 1.27V to 5.5V. The MIC5281-3.3YMME and MIC5281-3.3YMM offer fixed 3.3V outputs and the MIC5281-5.0YMME and MIC5281-5.0YMM offer fixed 5.0V outputs. The YMME packaged devices feature a heat slug to more effectively remove heat from the die.  R1  VOUT = VREF ×  + 1  R2  Eq. 1 where VREF = 1.267V, and R1 and R2 are shown in the Typical Applications circuit. Thermal Measurements It is always wise to measure an IC’s case temperature to make sure that it is within operating limits, but it is easy to get erroneous results. The standard thermal couple that comes with many voltage meters uses a large wire gauge that behaves like a heat-sink, resulting in artificially low case temperature measurements. Use a thermocouple of 36-gauge wire or smaller, such as the Omega (5SC-TTK-36-36), to minimize the heat-sinking effect. Also, apply thermal compound to maximize heat transfer between the IC and the thermocouple. Applications Information Thermal Protection MIC5281 has internal thermal shutdown to protect it from excessive heating of the die. When the junction temperature exceeds approximately +155°C, the output is disabled and the device begins to cool down. The device turns back on when the junction temperature cools by 15°C. This will result in a cycled output during continuous thermal-overload conditions. Current Limit MIC5281 features output current-limit protection. The output sustains a continuous short circuit to GND without damage to the device, but thermal shutdown often results. An infrared thermometer is a recommended alternative. The IR thermometer from Optris has a 1mm spot size, ideal for monitoring small surface mount packages. Also, the optional stand makes it easy to keep the beam on the IC for long periods of time. Input Capacitor Connect a 1.0µF capacitor from VIN to GND. Micrel recommends the C5750X7R2E105M, 1.0µF, 250V capacitor made by TDK. When using a different capacitor, assure that the voltage rating of the capacitor exceeds any potential transient. CPSRR Capacitor Connect a 0.1µF capacitor from CPSRR to GND to maintain high power supply rejection. The voltage rating of the capacitor must be at least 14V. Output Capacitor Connect a 10µF capacitor from VOUT to GND. Assure that the voltage rating of the capacitor exceeds the designed output voltage of the MIC5281. October 2, 2014 11 Revision 3.0 Micrel, Inc. MIC5281 MIC5281 Evaluation Board Schematic Bill of Materials Item C1 Part Number C5750X7R2E105M Manufacturer Description Qty. (8) 1.0µF, 250V, 20%, X7R capacitor (2220) 1 (9) 0.1µF 25V 20%, X5R capacitor (0805) 1 10µF, 10V, 20%, X5R, capacitor (0805) 1 100µF, 160V, 20% capacitor (ALU, 0.492"diameter can 0.197" lead spacing - Part # ECA-2CM101) 0 Capacitor 0 0Ω, 1% resistor, 0603 1 TDK C2 08053C104KAT2A AVX C3 0805ZD106KAT2A C4 OPEN Panasonic(10) C5 OPEN ANY AVX R1 CRCW06030000F R2 CRCW06032942F Vishay/Dale 29.4kΩ, 1% resistor, 0603 1 R3 CRCW06031002F Vishay/Dale 10.0kΩ, 1% resistor, 0603 1 R4 CRCW06031822F Vishay/Dale 18.2kΩ, 1%, resistor, 0603 1 R5 CRCW06033012F Vishay/Dale 30.1kΩ, 1% resistor chip, 0603 1 R6 CRCW06036982F Vishay/Dale 69.8kΩ, 1%, resistor, 0603 1 120VIN, 25mA, Ultra-Low IQ, High-PSRR Linear Regulator 1 U1 MIC5281YMME Vishay/Dale (11) Micrel (12) Notes: 8. TDK: www.tdk.com. 9. AVX: www.avx.com. 10. Panasonic: www.panasonic.com. 11. Vishay: www.vishay.com. 12. Micrel, Inc.: www.micrel.com. October 2, 2014 12 Revision 3.0 Micrel, Inc. MIC5281 PCB Layout Recommendations Top Layer Silk Screen Top Layer Traces October 2, 2014 13 Revision 3.0 Micrel, Inc. MIC5281 PCB Layout Recommendations (Continued) Bottom Layer Traces Bottom Layer Silk Screen October 2, 2014 14 Revision 3.0 Micrel, Inc. MIC5281 PCB Layout Recommendations (Continued) Evaluation Board Dimensions October 2, 2014 15 Revision 3.0 Micrel, Inc. MIC5281 Package Information and Recommended Landing Pattern(13) 8-Pin MSOP Note: 13. Package information is correct as of the publication date. For updates and most current information, go to www.micrel.com. October 2, 2014 16 Revision 3.0 Micrel, Inc. MIC5281 Package Information and Recommended Landing Pattern(13) (Continued) 8-Pin Exposed Pad (ePad) MSOP MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2011 Micrel, Incorporated. October 2, 2014 17 Revision 3.0